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CVE-2013-4422· NVD / CVE Program· CNA redhat

SQL injection vulnerability in Quassel IRC before 0.9.1, when Qt 4.8.5 or later and PostgreSQL 8.2 or later are used, allows remote attacker

SQL injection vulnerability in Quassel IRC before 0.9.1, when Qt 4.8.5 or later and PostgreSQL 8.2 or later are used, allows remote attackers to execute arbitrary SQL commands via a \ (backslash) in a message.

MediumCVSS 6.8 · v2.0—No exploit Fix available

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Published
Oct 23, 2013
Updated
Jun 16, 2026
EPSS
2.1% · 81th percentile
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Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
27 / 40 · 6.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.1%

Affected systems

VendorProduct
postgresqlpostgresql
quassel-ircquassel irc
qtqt

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Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • quassel-irc quassel ircup to 0.9.0 inclusive
  • quassel-irc quassel irc0.1.0
  • quassel-irc quassel irc0.3.0
  • quassel-irc quassel irc0.3.0.1
  • quassel-irc quassel irc0.3.0.2
  • quassel-irc quassel irc0.3.0.3
  • quassel-irc quassel irc0.3.1
  • quassel-irc quassel irc0.4.0
  • quassel-irc quassel irc0.4.1
  • quassel-irc quassel irc0.4.2
  • quassel-irc quassel irc0.4.3
  • quassel-irc quassel irc0.5.0
  • quassel-irc quassel irc0.6.1
  • quassel-irc quassel irc0.6.2
  • quassel-irc quassel irc0.6.3
  • quassel-irc quassel irc0.7.0
  • quassel-irc quassel irc0.7.1
  • quassel-irc quassel irc0.7.2
  • quassel-irc quassel irc0.7.3
  • quassel-irc quassel irc0.7.4

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12quasselbefore 0.9.1-10.9.1-1
openSUSE:Tumbleweedquasselbefore 0.12.4-3.30.12.4-3.3

Same product

postgresql: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-7546PostgreSQL versions before 9.2.22, 9.3.18, 9.4.13, 9.5.8 and 9.6.4 are vulnerable to incorrect authentication flaw allowing remote attackers
    57Plan
  • CVE-2019-9193In PostgreSQL 9.3 through 11.2, the "COPY TO/FROM PROGRAM" function allows superusers and users in the 'pg_execute_server_program' group to
    55Plan
  • CVE-2020-25695A flaw was found in PostgreSQL versions before 13.1, before 12.5, before 11.10, before 10.15, before 9.6.20 and before 9.5.24.
    49Plan
  • CVE-2007-3280The Database Link library (dblink) in PostgreSQL 8.1 implements functions via CREATE statements that map to arbitrary libraries based on the
    44Plan
  • CVE-2013-1899Argument injection vulnerability in PostgreSQL 9.2.x before 9.2.4, 9.1.x before 9.1.9, and 9.0.x before 9.0.13 allows remote attackers to ca
    42Plan
  • CVE-2018-16850postgresql before versions 11.1, 10.6 is vulnerable to a to SQL injection in pg_upgrade and pg_dump via CREATE TRIGGER ...
    41Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:quassel0.9.1-1 · Debian:12Package registry (OSV)
opensuse:quassel0.12.4-3.3 · openSUSE:TumbleweedPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

    If successful

    Confidentiality
    P · data can be read
    Integrity
    P · data or configuration can be modified
    Availability
    P · the service can be disrupted
    Attack complexity
    M
    Confidentiality impact
    P
    Integrity impact
    P
    Availability impact
    P

    Weakness class (CWE)

    CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

    CVSS vector

    AV:N/AC:M/Au:N/C:P/I:P/A:P

    nvd-primary

    Root cause

    The query text is built by concatenating user input. The database cannot tell where the data ends and the command begins.

    The bug in code

    The whole CWE-89 class

    A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

    Vulnerable

    ts
    const owner = req.query.owner;const rows = await db.query(  "SELECT * FROM files WHERE owner = '" + owner + "'");

    Fixed

    ts
    const owner = req.query.owner;const rows = await db.query(  "SELECT * FROM files WHERE owner = $1",  [owner]);

    Attack context

    MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

    ATT&CK techniques

    —

    Change log

    1. Fix✗ → ✓

    For records you follow, these changes also arrive as notifications. →

    References

    Vendor advisories and official records. Exploit/PoC links are deliberately left out.

    All records